Improvement in perforating-pens



T. A. EDISON; Perforating-Pen.

No.' 203,329; Patented May 7, 1878i UNITED STATES PATENT OEEToEQ THOMASA. EDISON, OF MENLO PARK, NEW JERSEY.

IMPROVEMENT IN PERFORATING-PENS.

Specification forming part of Letters Patent No. 203,329; dated May7,1878; application filed April 23, 1877.

To all whom it may concern:

Be it known that I, THOMAS A. EDIsoN, of Menlo Park, in the countyofMiddlesex and State of New Jersey, have invented an Improvement inPerforating-Pens, of which the following is a specification:

This invention is an improvement upon and modification of the devicepatented to me, N 0. 180,857, and dated August 8, 1876.

The present invention relates to a means for reciprocating the needlethat is used for perforatin g the paper.

I employ a motor that is revolved by foot or other convenient power, andgives motion to a shaft with universal joints that passes to the pen andrevolves the mechanism that reciprocates the pen, and at the same timethe universal joints allow the pen to be manipulated in writing ordrawing. It is also preferable to employ a tube and sliding rodextending from one universal joint to the other, that allows thedistance to be increased or lessened between the universal joints.

In the drawing, Figure 1 is an elevation, illustrating the connectionbetween the motor and the pen. Fig. 2 is a side view of the pen inlarger size and Fig. 3 is a section of the tubular connection inmagnified size.

The wheel a is revolved by suitable power. It will generally bepreferable to connect the same by a belt with a larger wheel, b, andflywheel 0, either above or below the table d, actuated by a treadle, f.H

The universal joint 6 is at one end of the shaft connecting the same tothe shaft of the wheel a, and this shaft 9 extends to the universaljoint h of the shaft is. It is preferable to have this shaft 9 in twoparts, one a tube, and the other arod slidingwithin it, there being agroove or feather (see Fig. 3) that allows the one part to be revolvedby the other, and at the same time the distance between the joints 6 andk can vary, to adapt the position of the pen to the place where thewriting is being performed.

The shaft i is revolved with great rapidity by means of the train ofgearingl m we extending between the shaft 70 and the shaft i. The shaftsof this train of gearing are supported in the light metallic frame abovethe tubular pen-holder 0, within which is the needle 8, that isreciprocated by a cam or eccentric, 1", upon the shaft z. The guide tserves to maintain the upper end of the needle-holder in its properposition. The penetrating needle-point acts, as described in myaforesaid patent, to perforate the paper in drawing or writing, and thesubsequent printing from the perforated sheet is to be done in themanner described in said patent.

I claim as my invention- 1. The combination, with an autographicperforating-pen, and the cam or eccentric to operate the same, of theuniversal joints and shaft 9, connecting and giving motion from a motorto the mechanism upon the pen, substantially as set forth.

2. The extension-shaft 9, made in two parts, one sliding within theother, and provided with universal joints at the ends, in combinationwith a motor and a pen formed of a reciprocating needle, a holder, andmechanism for moving the pen, substantially as set forth.

3. In combination with the autographic perforating-pen, the train ofgearing upon the pen to increase the speed of the pen, and a motorconnecting with the train of gearing upon the pen, substantially as setforth.

Signed by me this 18th day of April, A. D.

THOS. A. EDISON. Witnesses:

GEO. T. PINcKnEY, CHAS. H. SMITH.

